Finding the Fourth Proportional to 21,648,414.97, 29,861,050.08 and 14,206,559.68
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Solution
The fourth proportional to 21,648,414.97, 29,861,050.08 and 14,206,559.68 is: 19,596,020.80
Step by Step Solution
- Step 1: Write the proportion equation
21,648,414.97 : 29,861,050.08 = 14,206,559.68 : x - Step 2: Convert to fraction form
21,648,414.97/29,861,050.08 = 14,206,559.68/x - Step 3: Cross multiply
21,648,414.97x = 29,861,050.08 × 14,206,559.68 - Step 4: Simplify right side
21,648,414.97x = 424,222,790,068,988.75 - Step 5: Solve for x
x = 424,222,790,068,988.75/21,648,414.97 - Step 6: Final answer
x = 19,596,020.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.